<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div{
            color:chartreuse;
            font-size:50px;
            font-family:宋体;
            /* text-align:center; */
            text-indent:2em;
            border: red 4px solid;
        }
    </style>
</head>
<body>
    <div>
        color:颜色<br>
        font-size:字体大小<br>
        font-family:字体种类<br>
        text-align:文本对齐方式<br>
        text-indent:首行缩进<br>
    </div>

</body>
</html>